Choosing the Right Air Filter for Your Home

Choosing the Right Air Filter for Your Home

At Millian Aire, we understand that air filters are more than just a routine replacement—they’re a critical component of your HVAC system’s performance and your home’s air quality.

Not All Filters Are Created Equal

Air filters vary widely in what they’re designed to do:

  • Some prioritize maximum filtration, trapping dust, pollen, pet dander, and other airborne irritants.
  • Others are optimized for airflow, reducing strain on your HVAC system and extending its lifespan.

Using the wrong filter can backfire—reducing system efficiency, increasing energy bills, and even shortening the life of your unit.

Why MERV Ratings Matter

Filters are rated using the MERV scale (Minimum Efficiency Reporting Value):

  • A higher MERV rating = better filtration but more resistance to airflow
  • A lower MERV rating = better airflow but less filtration

Choosing the right balance is crucial. A filter that’s too dense can choke your system, while one that’s too basic may leave your home exposed to harmful particles.

That’s why Millian Aire helps you select the ideal filter for your home, lifestyle, and HVAC system—ensuring both clean air and peak performance.

Understanding MERV Ratings — And What They Mean for Your Home

Understanding MERV Ratings — And What They Mean for Your Home

Understanding MERV Ratings — And What They Mean for Your Home

The Minimum Efficiency Reporting Value (MERV) rating measures how effectively an air filter captures airborne particles. Higher MERV ratings mean better filtration, while lower ratings allow for improved airflow. Choosing the right MERV rating is about balancing clean air with system performance.

MERV Rating Guide

MERV 1–4 (Low Filtration):
Captures large dust particles only.
Best for: Basic protection with minimal filtration.

MERV 5–8 (Moderate Filtration):
Captures mold spores, dust mites, and larger airborne particles.
Best for: Standard residential use where airflow is a priority.

MERV 9–12 (High Filtration):
Captures pet dander, fine dust, and pollen.
Best for: Homes with pets, allergies, or anyone looking to improve indoor air quality.

MERV 13–16 (Very High Filtration):
Captures smoke, bacteria, viruses, and very fine particles.
Best for: Hospitals, medical settings, or homes with extreme allergy sufferers—note that not all HVAC systems can handle filters this dense.

The Trade-Off: Air Quality vs. System Performance

Higher-MERV filters can restrict airflow and force your HVAC system to work harder, potentially causing:

  • Higher energy bills
  • Decreased system efficiency
  • Shortened HVAC lifespan
  • Risk of airflow-related system failures if your equipment isn’t built for high-MERV filters

Solutions for Better Air Without Overworking Your System

If you’re concerned about indoor air quality but don’t want to compromise your HVAC’s performance:

  • Use a MERV 8–11 filter for airflow balance
  • Add a UV purification system to eliminate bacteria and viruses
  • Schedule an HVAC inspection to verify your system’s compatibility

Why Trust Millian Aire?

At Millian Aire AC & Heating, we help homeowners choose the right filter based on:

  • HVAC system specs
  • Indoor air quality goals
  • Allergies, pets, and health sensitivities

Our experts ensure you get cleaner air without sacrificing system efficiency.

Your Two Best Options for Cleaner Indoor Air

Your Two Best Options for Cleaner Indoor Air

If you or someone in your home suffers from allergies, asthma, or respiratory sensitivities, achieving high-quality indoor air is essential. At Millian Aire, we recommend two proven solutions—each with distinct benefits depending on your HVAC system's capabilities.

Option 1: Use a High-MERV Filter (MERV 13–16)

High-MERV filters provide the strongest air filtration by capturing microscopic particles like smoke, bacteria, and viruses.
Best for: Maximum filtration and homes with extreme allergy or respiratory needs.

Things to Consider:

  • Higher filtration means more airflow restriction
  • Can strain your HVAC system and shorten its lifespan
  • May lead to higher energy bills and more frequent maintenance
  • Works best with newer or high-capacity HVAC units
  • Pairing with a maintenance plan or extended warranty is highly recommended

Option 2: Use a MERV 8–12 Filter with a UV Light System

UV lights kill airborne bacteria, mold, and viruses inside your HVAC system—without restricting airflow.


Best for: Balanced performance, high air quality, and energy-efficient operation.

Benefits of the UV Light Combo:

  • Disinfects air without compromising system efficiency
  • Reduces microbial buildup inside ductwork
  • Improves indoor air quality while maintaining optimal airflow
  • Helps prevent HVAC-related mold growth and odors
  • Compatible with most HVAC systems, including older units

When to Choose UV Over High-MERV Filters

If your HVAC system struggles with airflow or isn’t designed to handle dense filters, a UV light + MERV 8–11 filter combo may be the ideal solution. This balanced approach offers strong air purification without overloading your system.

Best Overall Combination for Comfort + Clean Air:

MERV 8–11 Filter + UV Light System


✔ Improved air quality
✔ Maintains system efficiency
✔ Reduces long-term maintenance costs

Choosing the Right Air Filter for Your Home

Choosing the Right Air Filter for Your Home

The ideal air filter balances two critical goals: improving indoor air quality and maintaining HVAC system performance. At Millian Aire, we help homeowners make informed choices based on system compatibility, air purification needs, and overall energy efficiency.

Recommended Filters Based on Your Home’s Needs

For Severe Allergies or Asthma:


Use a MERV 11–13 filter to capture fine dust, pollen, and allergens.

If your system struggles with high-MERV filters, opt for a MERV 8–10 filter paired with a UV light system for strong air purification without reducing airflow.

For Homes with Pets or Smokers:


Use a MERV 9–12 filter to trap pet dander, smoke particles, and lingering odors—keeping air cleaner and more breathable.

For Older Systems or Airflow Concerns:


Stick with MERV 8–10 filters to maintain efficient airflow.

Add a UV light to eliminate bacteria and mold while avoiding strain on your system.

For Basic Protection and HVAC Longevity:


Choose a MERV 6–8 filter if indoor air quality isn’t a major concern but system preservation is. These filters help extend your HVAC system’s lifespan with minimal airflow resistance.

Why Choose Millian Aire for Your Air Filter Solutions?

Millian Aire AC & Heating goes beyond selling filters—we help you find the solution that’s right for your home, your system, and your air.

Expert Recommendations

We assess your HVAC system, allergy needs, airflow capacity, and environmental factors to help you choose the right filter—not just the most expensive one.

Full Indoor Air Quality Solutions

From air filters to UV light systems and whole-home air purifiers, we offer complete IAQ solutions that improve air quality without overloading your HVAC system.

Maintenance Plans & Warranties

For homes using high-MERV filters, we offer optional maintenance plans and extended warranties to help manage wear and ensure your system performs at its best all year.

Schedule a Free Consultation Today

Let us assess your HVAC system, air quality concerns, and airflow needs. We'll recommend the best solution that fits your budget—no pressure, no guesswork.